96cruiser- I use 10w30 mobil one synthetic, same viscosity that is recommended in the owners manual fo dino oil. I haven't heard any good arguments to convince me to switch to another viscosity yet. I've usually changed oil at 7500 on vehicles when using synth even though that is the...
Jacknasty, the amsoil may have just got everything in suspension that has been in your motor for a long time, might try using it a second time to see if it's any better. Just a thought.
Curran, I just switched to mobil 1 full synthetic 10w 30 last night, I've got 179k miles. I don't expect...